Summary and review ofHow to Live Off Your Investments

Reviewed by Diario de un Inversor · UpdatedJuly 17, 2026

Our review

Josan Jarque left his banking job at 43 to live off his investment income, and in this book — published by Martínez Roca in 2020 with a foreword by Gregorio Hernández Jiménez — he explains how he did it and what he would do differently. It is one of the reference personal accounts of the FIRE movement in Spain: systematic saving on a normal salary, long-term investing, and the patience to let compound interest do its work. What distinguishes the book is its tone: Jarque writes with humor, without jargon, and with unusual honesty about his own mistakes and about the «stones in the road» — biases, impatience, trap financial products — that trip up anyone pursuing financial independence without the right mindset. It is not a technical investment manual: readers looking for fund analysis, model portfolios, or detailed tax planning will need to complement it. It is, above all, a named, real-life demonstration that an employee on an ordinary salary can reach financial freedom in Spain, and an effective vaccine against shortcut sellers.

Key takeaways

• Financial independence is above all a matter of a sustained savings rate over years, not of finding the perfect investment.
• The «stones in the road» — impatience, expensive products, siren songs — destroy more wealth than market crashes do.
• Living off your investments requires calculating how much you actually need to live, and that figure is usually lower than most people assume.
• The rentier's path is boring by design: automating saving and investing protects the plan from your own emotions.

Fact

Josan Jarque reached financial independence at 43 after leaving his banking job; the book, published by Martínez Roca (Planeta) in 2020, carries a foreword by Gregorio Hernández Jiménez, a leading Spanish author on stock market investing.